<%@page contentType="text/html; charset=UTF-8" language="java" %> //主要解决中文乱码
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>表达式实例</title>
</head>
<body>
    <%!
    String url ="exp.jsp";
    %>
    <a href="<%=url%>">点击跳转</a>
</body>
</html>